on her one evening to present her a unique ring, with the stones set in some of the platinum he had dug in the Siberian mine.
"Vacation? I have no time for vacations!" said the young inventor. "I'm soon going to work on my silent airship, and on some other things I have in mind. I want more adventures."
"Oh, you greedy boy!" exclaimed Mary with a laugh.
And what adventures Tom had next will be found in the next book of this series, which will be entitled, "Tom Swift in Captivity; Or, a Daring Escape by Airship."
Tom had several offers to give exhibitions in his air glider, from aviation committees at various meets, but he declined.
"I haven't time," he declared. "I'm too busy."
"You ought to rest," his chum Ned advised him.
"'Bless my alarm clock!' as Mr. Damon would say," exclaimed Tom. "The best rest is new work," and then he began sketching his ideas for a silent motor craft, during which we will take leave of him for a while.
THE END
